Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
James C Santoyo
Behavior Analyst in Pleasanton, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255679288
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Registry record
Entity type Individual (Type 1)
Name James C Santoyo
Sex Male
Practice address 5729 Sonoma Dr Ste K, Pleasanton, CA, 94566
Phone (925) 462-2281
Enumeration date Jan 25, 2013
Last updated in NPPES Jan 25, 2013
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for James Santoyo?
The National Provider Identifier (NPI) for James Santoyo is 1255679288, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Santoyo practice?
The practice location on file with NPPES is in Pleasanton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-25.